A battery module includes a plurality of battery cells, and a bus bar for electrically connecting the plurality of battery cells, wherein the bus bar includes a bus bar body and a safety unit inserted into a part of the bus bar body and surrounded by the bus bar body, and wherein the safety unit includes a volumetric expansion resin, a conductive material and an adhesive.

A battery module includes a plurality of battery cells, and a bus bar for electrically connecting the plurality of battery cells, wherein the bus bar includes a bus bar body and a safety unit inserted into a part of the bus bar body and surrounded by the bus bar body, and wherein the safety unit includes a volumetric expansion resin, a conductive material and an adhesive.

The present invention relates to a battery pack including batteries. A first current collector is provided for engaging with first electrodes of the batteries. The battery pack further includes a second current collector for engaging with second electrodes of the batteries. Fastening means is provided for fastening the current collectors together. Advantageously, the battery pack is assembled by fitting the current collectors together, without the need for screws or other threaded fasteners.

The embodiment of the application relates to a battery assembly and an electrochemical device. The battery assembly includes a first end; a first cell; a second cell, stacked with the first cell, and a first insulator. The first cell is electrically connected with the second cell in series to form a first set of tabs in series, or the first cell is electrically connected with the second cell in parallel to form a first set of tabs in parallel. The first insulator at least covers the first end and being located in a gap of the first series tab assembly or the first parallel tab assembly at the first end. The battery assembly and the electrochemical device provided by the embodiment of the application can realize connection of a soft-package battery with the outside by a simple structure, and meanwhile, has good mechanical resistance and environment resistance.

An embodiment of this application provides a connecting assembly, a battery module, a battery pack, a device, and a manufacturing method. The connecting assembly includes an insulation board and a busbar. The insulation board includes a hollow portion, a first side, and a second side. The busbar includes a first busbar and a second busbar. The first busbar is disposed on the first side of the insulation board. The second busbar is disposed from the second side into the hollow portion of the insulation board. The battery module includes a battery cell and a module frame. The battery cell is accommodated in the module frame. The battery module further includes a connecting assembly. The connecting assembly is connected to an electrode lead of the battery cell by the busbar. The battery pack includes the battery module. A device using a battery cell as a power supply includes: a power source configured to provide a driving force for the device; and a battery module configured to provide electrical energy to the power source. This application mitigates the problem that the busbar is hardly shockproof and is likely to shake.

An embodiment of this application provides a connecting assembly, a battery module, a battery pack, a device, and a manufacturing method. The connecting assembly includes an insulation board and a busbar. The insulation board includes a hollow portion, a first side, and a second side. The busbar includes a first busbar and a second busbar. The first busbar is disposed on the first side of the insulation board. The second busbar is disposed from the second side into the hollow portion of the insulation board. The battery module includes a battery cell and a module frame. The battery cell is accommodated in the module frame. The battery module further includes a connecting assembly. The connecting assembly is connected to an electrode lead of the battery cell by the busbar. The battery pack includes the battery module. A device using a battery cell as a power supply includes: a power source configured to provide a driving force for the device; and a battery module configured to provide electrical energy to the power source. This application mitigates the problem that the busbar is hardly shockproof and is likely to shake.

Provided is a high-performance, high-quality battery module including plurality of electrode bodies connected in series. The battery module disclosed herein has a plurality of electrode bodies that include positive electrodes and negative electrodes, connecting terminals that connect the plurality of electrode bodies in series, and a film exterior body that covers the plurality of electrode bodies and the connecting terminals. The electrode bodies each includes a pair of flat surfaces and are made into a module by being superimposed on each other, such that the flat surfaces face each other. The connecting terminal is made up of a cladding material resulting from joining of a first metal, which is a metal of identical type to that of the positive electrode, and a second metal, which is a metal of identical type to that of the negative electrode.

A battery module includes a cell assembly including at least one battery cell; a module casing configured to accommodate the cell assembly; and a busbar assembly integrated by forming, by insert-injection molding, a busbar electrically connected to an electrode lead of the cell assembly, and a busbar frame configured to cover the cell assembly at least at one side thereof.

A battery module includes a cell assembly including at least one battery cell; a module casing configured to accommodate the cell assembly; and a busbar assembly integrated by forming, by insert-injection molding, a busbar electrically connected to an electrode lead of the cell assembly, and a busbar frame configured to cover the cell assembly at least at one side thereof.

A conductive module includes: a conductive component as a flat flexible printed circuit substrate that electrically connects electric conductors to a plurality of battery cells; a thermistor that is placed on as electrical connection part of a bifurcating body of the conductive component and detects the temperature of a battery cell as a temperature detection target; and a housing that houses or/and holds the conductive component. The bifurcated body includes a coupling part that couples the electrical connection part to a main body. The electrical connection part is a part to which heat of an outer wall surface of the battery cell is directly or indirectly transferred from a surface on a side opposite to a placement surface on which the thermistor is placed.